CN1162245C - Laser processing device and its method - Google Patents
Laser processing device and its method Download PDFInfo
- Publication number
- CN1162245C CN1162245C CNB001016792A CN00101679A CN1162245C CN 1162245 C CN1162245 C CN 1162245C CN B001016792 A CNB001016792 A CN B001016792A CN 00101679 A CN00101679 A CN 00101679A CN 1162245 C CN1162245 C CN 1162245C
- Authority
- CN
- China
- Prior art keywords
- laser
- laser beam
- laser processing
- machined object
- machining area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0892—Controlling the laser beam travel length
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0017—Etching of the substrate by chemical or physical means
- H05K3/0026—Etching of the substrate by chemical or physical means by laser ablation
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
In a laser processing apparatus wherein laser beams are respectively focused and irradiated by focusing devices onto work being processed, thereby performing laser processing in processing areas within predetermined ranges on the work, an adjustment member is provided for automatically adjusting the interval between the center points of the focusing devices in correspondence with the size of the entire processing area on the work being processed.
Description
The present invention relates to laser processing device and the method for laser beam in the enterprising eleven punch 11 processing of machined object of electronic circuit board etc. etc.
As an example of this laser processing device, as shown in Figure 4, prior art system constitutes by the irradiation of laser beam the trickle aperture on substrate 7 machined objects such as grade is carried out laser processing.In this laser processing device, laser beam 2 is divided into two-way by branch apparatus 9 after changing direction by laser oscillator 1 ejaculation and by speculum 3a.Laser beam 2a, 2b along separate routes is directed into mirror galvanometer 4,5 directions of the speculum (galvano-mirror) with X-Y2 axle respectively by speculum 3b, 3c and speculum 3d, 3e, 3f, draw by returning of each galvanometer 4,5 and to change direction of illumination and inciding f θ lens 6a, 6b respectively and focusing on the back to by in addition X-Y scanning and irradiation of the machining area B of the preset range on the substrate 7 of XY worktable 8 location, XY worktable 8 is moved next machining area is carried out laser processing, and successively each machining area is processed.
Yet, in the laser processing that adopts above-mentioned laser processing device, on substrate 7, carry out perforate with the laser beam 2c that focuses among f θ lens 6a, the 6b and add man-hour, because the relation of the circularity in hole, machining area B is limited to about about 50mm at X, Y both direction respectively with the effective diameter of f θ lens 6a, 6b.Because substrate 7 is of a size of about 200-500mm and its full machining area A is roughly the same, supposes that directions X is of a size of 500mm, the Y direction is of a size of 350mm, and then machining area is necessary for 70 arrays.
But the size of substrate 7 is various, interval between two f θ lens 6a, the 6b is in case fixing, promptly use the process finishing of a side f θ lens, and do not finish with the processing of the opposing party's f θ lens, in considerable time thereafter, will produce the occasion that the processing of the opposing party's f θ lens must continue, thereby reduce working (machining) efficiency.And in the course of processing of the opposing party's f θ lens, must manage to make the laser beam of a side f θ lens not to be radiated on the substrate 7, and produce the energy loss that causes because of invalid laser radiation therebetween.
Therefore, the object of the present invention is to provide a kind ofly can address the above problem, and can be corresponding with the change in size of machined object, laser processing device and the method that can carry out the high efficient laser processing of production efficiency.
For achieving the above object, laser processing device of the present invention has the laser oscillator of outgoing laser beam, the laser beam that is penetrated by laser oscillator is carried out branch apparatus along separate routes, each laser beam after the shunt is directed to the scanning means on the Working position of machined object, laser beam is focused on and is radiated at focusing arrangement on the machined object, the device that machined object is relatively moved with respect to described focusing arrangement, it is characterized in that having according to the size of the full machining area on the machined object and self-adjusting adjusting device is carried out at the interval between the central point of each focusing arrangement.Adopt the present invention, relatively move for focusing arrangement and each machining area is added man-hour in proper order at machined objects such as making substrate, size according to the full machining area on the machined object is adjusted automatically to the interval between the central point of each focusing arrangement, can make the concluding time unanimity of the laser processing in the whole focusing arrangement, can not have the invalid activity duration or the invalid laser radiation that cause because of the concluding time of laser processing is inconsistent in the prior art, thereby carry out the laser processing of high efficiency, high productivity.
In addition, in foregoing invention, has the optical path length adjusting device, described optical path length adjusting device is located at the position of the speculum on the light path of laser beam by adjustment, will be adjusted into same distance from being lighted by the shunt of branch apparatus each laser beam along separate routes through each optical path length till each focus point that is focused on by each focusing arrangement behind each scanning means.By the optical path length that is produced by the adjustment of above-mentioned central point is inconsistent to be corrected and the focus state of each laser beam is kept same to following, process when can carry out accurately for machined object.
For achieving the above object, laser processing of the present invention adopts laser processing device, described laser processing device is changed to by dividing other scanning means to be divided into each laser beam of 2 tunnel to the laser beam that is penetrated by laser oscillator by branch apparatus and is directed on the Working position of machined object, simultaneously focused on and be radiated on the machined object by focusing arrangement, by 2 laser beams the machining area of the preset range on the machined object is carried out laser processing, and described machined object is relatively moved with respect to 2 focusing arrangements, by each laser beam following machining area is carried out laser processing successively from each focusing arrangement irradiation, it is characterized in that, size according to the full machining area on the machined object, interval between the central point of 2 focusing arrangements is adjusted automatically, make described interval become all the time described full machining area length 1/2, carry out laser processing then.
As adopt the present invention, and can adopt two laser beams also can adjust automatically the interval between the central point of two focusing arrangements reliably, can carry out the laser processing of high efficiency high productivity.
The accompanying drawing simple declaration:
Fig. 1 is the stereogram of the formation of the laser processing device of the laser processing of expression employing the present invention the 1st example.
The skeleton diagram that Fig. 2 carries out the laser processing action for full machining area in the same example of explanation.
Fig. 3 is the stereogram of the formation of the laser processing device of the laser processing of expression employing the present invention the 2nd example.The stereogram that constitutes.
Fig. 4 is the stereogram of the formation of the laser processing device of the existing laser processing of expression employing.
An explanation example of the present invention below sees figures.1.and.2.
Fig. 1 represents to adopt the formation of laser processing device of the laser processing of the present invention's the 1st example.To the laser beam that penetrates from laser oscillator 12 direction transformation in addition, and is two laser beam 2a, 2b by light beam separating device (branch apparatus) 9 shunt with speculum 3a.Laser beam 2a, 2b along separate routes can make two speculum 4a, 5a two galvanometer (scanning means) 4,5 that laser beam 2 scans incide each f θ lens (focusing arrangement) 6a, 6b along the X-Y2 axle by speculum 3b, 3c and speculum 3d-3f guiding and from being arranged at respectively, and shines by the machining area B of the preset range of the substrate (machined object) 7 of XY worktable 8 location after being focused on by each f θ lens 6a, 6b and carry out perforate processing.
The laser irradiating part that is made of galvanometer 4,5 and f θ lens 6a, 6b is divided into 2 groups, and the laser irradiating part I with f θ lens 6a is fixed, and the laser irradiating part II with f θ lens 6b then can position with adjusting and move.
Workbench 10 (adjusting device) is installed on the laser irradiating part II, and can makes f θ lens 6b move to optimum Working position by the interval C that adjusts the central point between each f θ lens 6a, 6b corresponding to the size (full machining area A) of substrate 7 automatically.Thereby can make the concluding time unanimity of the laser processing of two f θ lens 6a, 6b, and invalid activity duration that does not cause because of the concluding time of laser processing is inconsistent or invalid laser radiation.
The laser processing of the 1st example below is described.
For example, suppose the full machining area A=500mm on the substrate 7, then the interval C between the central point of the directions X of f θ lens 6a, 6b is set to
C＝500/2＝250mm。
Then substrate 7 is positioned at the precalculated position by X-Y workbench 8, laser beam 2c is directed on the Working position of substrate 7 by the speculum 4a, the 5a that are arranged at respectively in the galvanometer 4,5, laser beam 2 is focused on and shine with f θ lens 6a, 6b, can carry out perforate processing successively to the preset range of machining area B, B respectively by each laser irradiating part I, II.
Specify by above-mentioned laser beam 2c referring now to Fig. 2 and to carry out perforate processing.
In this example, divide into the machining area B of 4 * 10=40 array with respect to full machining area A.And the interval C between the central point of other f θ lens of branch 6a, 6b by automatically adjusting laser irradiating part I, II, shown in dash-dot arrows among Fig. 2, in laser irradiating part I, begin by 1-2,1-3,1-4,2-4,2-3 from 1-1 (S point) ... order process successively and finish in 5-4 (E point).In another laser irradiating part II, begin by 6-2,6-3,6-4,7-4,7-3 from 6-1 (S ' point) ... order process successively and finish in 10-4 (E ' point).
As mentioned above, 1/2 of the directions X total length of the directions X by the interval C between the central point of f θ lens 6a, 6b being adjusted into automatically full machining area A, owing to there is not to use the time of laser irradiating part I or II either party processing, and process data is not wasted, so can carry out the laser processing of the high production line of high efficiency.
Fig. 3 is the formation of the laser processing device of the laser processing of expression employing the 2nd example of the present invention.In this example, constitute by the workbench (optical path length adjusting device) 11 that puts speculum 3e, 3f is moved, along with in the 1st example by moving of workbench 10 to the adjustment of the interval C between the above-mentioned central point, the optical path length of laser beam 2b of laser irradiating part II is different with the optical path length of the laser beam 2a of laser irradiating part I also can be corrected even the optical path length of laser beam 2b can be adjusted into automatically.
In Fig. 3, same with the 1st example, the laser beam 2 that penetrates from laser oscillator 1 is divided into 2 the tunnel and be directed into 2 groups of laser irradiating part I and the II with galvanometer 4,5 and f θ lens 6a, 6b by light beam separating device 9.Laser beam 2a, the 2b of 2 shunt arrives each optical path length of each focus point (processing stand) of substrate 7 by each f θ lens 6a, 6b of each laser irradiating part I and II from its shunting point can relatively moving and change with laser irradiating part II.But in this example, then can adjust its optical path length by moving the workbench 11 that puts speculum 3e, 3f.
Promptly, mobile by workbench 11 is adjusted, laser irradiating part II can be positioned to make by with light beam separating device 9 along separate routes and towards the laser beam 2a of laser irradiating part I by speculum 3b, 3c reflection and the optical path length that incides galvanometer speculum 4a with 3e, 3f on workbench 11 reflects and the optical path length that incides galvanometer speculum 4a is same distance through speculum 3d and by putting with light beam separating device 9 laser beam 2b along separate routes.For example when the spacing that makes laser irradiating part I, II move D apart from the time, the amount of movement of workbench 11 is D/2 (not shown).
Like this, by making from the shunting point of light beam separating device 9 laser beam 2 along separate routes optical path length unanimity to the focus point of each laser irradiating part I, II, because it is same that the focus state of laser beam 2a, 2b along separate routes is maintained, and can carry out accurately processing simultaneously for the laser of substrate 7.
As mentioned above, adopt the present invention, can be with the full machining area of the machined object of substrate etc. big or small corresponding, by eliminating invalid process time in the interval between the automatic adjustment focusing arrangement, so can carry out the laser processing of the perforate processing etc. of high efficiency, high productivity accurately.
Claims (3)
1. laser processing device, have outgoing laser beam laser oscillator, the laser beam that is penetrated by laser oscillator is carried out branch apparatus along separate routes, each laser beam after will be along separate routes be directed to scanning means on the Working position of machined object, laser beam focused on and be radiated at the focusing arrangement on the machined object, the device that machined object is relatively moved with respect to described focusing arrangement, it is characterized in that having according to the size of the full machining area on the machined object and self-adjusting adjusting device is carried out at the interval between the central point of each focusing arrangement.
2. laser processing device as claimed in claim 1, it is characterized in that, has the optical path length adjusting device, described optical path length adjusting device is located at the position of the speculum on the light path of laser beam by adjustment, will be adjusted into same distance from being lighted by the shunt of branch apparatus each laser beam along separate routes through each optical path length till each focus point that is focused on by each focusing arrangement behind each scanning means.
3. method that adopts laser processing device to carry out laser processing, described laser processing device is changed to by dividing other scanning means to be divided into each laser beam of 2 tunnel to the laser beam that is penetrated by laser oscillator by branch apparatus and is directed on the Working position of machined object, simultaneously focused on and be radiated on the machined object by focusing arrangement, by 2 laser beams the machining area of the preset range on the machined object is carried out laser processing, and described machined object is relatively moved with respect to 2 focusing arrangements, by each laser beam following machining area is carried out laser processing successively from each focusing arrangement irradiation, it is characterized in that, size according to the full machining area on the machined object, interval between the central point of 2 focusing arrangements is adjusted automatically, make described interval become all the time described full machining area length 1/2, carry out laser processing then.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30877/1999 | 1999-02-09 | ||
| JP03087799A JP3642969B2 (en) | 1999-02-09 | 1999-02-09 | Laser processing apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1262977A CN1262977A (en) | 2000-08-16 |
| CN1162245C true CN1162245C (en) | 2004-08-18 |
Family
ID=12315978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001016792A Expired - Fee Related CN1162245C (en) | 1999-02-09 | 2000-01-24 | Laser processing device and its method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6403920B1 (en) |
| EP (1) | EP1031396B1 (en) |
| JP (1) | JP3642969B2 (en) |
| CN (1) | CN1162245C (en) |
| SG (1) | SG83188A1 (en) |
| TW (1) | TW445189B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862170A (en) * | 2012-12-12 | 2014-06-18 | 武汉楚天工业激光设备有限公司 | Laser guide system for solving problem of impeller welding long optical distance |
| CN109702328A (en) * | 2017-10-26 | 2019-05-03 | 住友重机械工业株式会社 | Laser processing device |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4770057B2 (en) | 2001-05-14 | 2011-09-07 | 三菱電機株式会社 | Laser processing machine and laser processing method |
| US6755107B2 (en) * | 2001-05-18 | 2004-06-29 | One World Technologies Lmt. | Miter saw having a light beam alignment system |
| JP4031239B2 (en) * | 2001-12-19 | 2008-01-09 | 日立ビアメカニクス株式会社 | Processing equipment |
| US6977775B2 (en) * | 2002-05-17 | 2005-12-20 | Sharp Kabushiki Kaisha | Method and apparatus for crystallizing semiconductor with laser beams |
| JP4668508B2 (en) * | 2002-05-17 | 2011-04-13 | シャープ株式会社 | Semiconductor crystallization method |
| US20030233921A1 (en) * | 2002-06-19 | 2003-12-25 | Garcia Jaime E. | Cutter with optical alignment system |
| US6947454B2 (en) * | 2003-06-30 | 2005-09-20 | Electro Scientific Industries, Inc. | Laser pulse picking employing controlled AOM loading |
| US20060114948A1 (en) * | 2004-11-29 | 2006-06-01 | Lo Ho W | Workpiece processing system using a common imaged optical assembly to shape the spatial distributions of light energy of multiple laser beams |
| GB2439962B (en) * | 2006-06-14 | 2008-09-24 | Exitech Ltd | Process and apparatus for laser scribing |
| DE102006036544A1 (en) * | 2006-08-04 | 2008-02-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Optoelectronic module |
| US9421638B2 (en) | 2006-12-22 | 2016-08-23 | Panasonic Intellectual Property Management Co., Ltd. | Laser processing apparatus and laser processing method using the same technical field |
| CN100463759C (en) * | 2007-07-10 | 2009-02-25 | 中国科学院上海光学精密机械研究所 | Modular laser direct-etching device |
| JP4911050B2 (en) * | 2008-01-25 | 2012-04-04 | パルステック工業株式会社 | Laser processing apparatus and laser processing method |
| DE102008014263A1 (en) * | 2008-03-13 | 2009-09-24 | Schott Solar Gmbh | Method and device for forming the parting lines of a photovoltaic module with series-connected cells |
| JP5371534B2 (en) * | 2009-04-24 | 2013-12-18 | 株式会社日立ハイテクノロジーズ | Laser processing method, laser processing apparatus, and solar panel manufacturing method |
| JP2011067865A (en) * | 2009-08-27 | 2011-04-07 | Hitachi High-Technologies Corp | Method and device for laser beam machining, and method for manufacturing solar panel |
| CN102350592A (en) * | 2010-03-30 | 2012-02-15 | 应用材料公司 | Laser processing system with variable beam spot size |
| DE102010062071A1 (en) * | 2010-11-26 | 2012-05-31 | Rofin-Baasel Lasertech Gmbh & Co. Kg | Device, useful for introducing recesses or openings spaced from each other in longitudinal direction, in material web, comprises a laser beam source for generating laser beam, and a first polygon mirror rotating around a rotational axis |
| JP6030299B2 (en) * | 2011-12-20 | 2016-11-24 | 株式会社ディスコ | Laser processing equipment |
| EP2778784B8 (en) * | 2013-03-11 | 2022-02-23 | Esko-Graphics Imaging GmbH | Apparatus and method for multi-beam direct engraving of elastomeric printing plates and sleeves |
| CN105397312B (en) * | 2014-09-11 | 2017-06-27 | 大族激光科技产业集团股份有限公司 | A kind of optical-fiber laser highly-efficient processing head |
| CN104439716A (en) * | 2014-11-17 | 2015-03-25 | 深圳锜宏伟科技有限公司 | Laser processing system and laser processing method |
| CN110153551A (en) * | 2018-02-14 | 2019-08-23 | 镭射沃激光科技(深圳)有限公司 | Laser processing device and the laser processing for utilizing this |
| SG11202103563XA (en) * | 2019-01-31 | 2021-05-28 | Electro Scientific Industries Inc | Laser-processing apparatus, methods of operating the same, and methods of processing workpieces using the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240986A (en) * | 1985-08-20 | 1987-02-21 | Fuji Electric Corp Res & Dev Ltd | Laser beam machining method |
| US5089683A (en) | 1990-09-18 | 1992-02-18 | Union Carbide Coatings Service Technology Corporation | Device for producing a constant length laser beam and method for producing it |
| US5478983A (en) * | 1992-10-22 | 1995-12-26 | Rancourt; Yvon | Process and apparatus for welding or heat treating by laser |
| DE69737991T2 (en) | 1996-11-20 | 2008-04-30 | Ibiden Co., Ltd., Ogaki | LASER PROCESSING DEVICE, METHOD AND DEVICE FOR PRODUCING A MULTILAYER PRINTED PCB |
| JP3380416B2 (en) | 1997-02-05 | 2003-02-24 | 本田技研工業株式会社 | Laser welding equipment |
| TW351807B (en) * | 1997-10-14 | 1999-02-01 | Industrial Tech Institute | Method and apparatus for testing focus and track of optical head of CD player testing on focus and track for optical head of CD player |
-
1999
- 1999-02-09 JP JP03087799A patent/JP3642969B2/en not_active Expired - Fee Related
-
2000
- 2000-01-24 CN CNB001016792A patent/CN1162245C/en not_active Expired - Fee Related
- 2000-02-01 US US09/495,856 patent/US6403920B1/en not_active Expired - Lifetime
- 2000-02-02 TW TW089101790A patent/TW445189B/en not_active IP Right Cessation
- 2000-02-04 EP EP00300908A patent/EP1031396B1/en not_active Expired - Lifetime
- 2000-02-04 SG SG200000614A patent/SG83188A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862170A (en) * | 2012-12-12 | 2014-06-18 | 武汉楚天工业激光设备有限公司 | Laser guide system for solving problem of impeller welding long optical distance |
| CN103862170B (en) * | 2012-12-12 | 2016-05-04 | 武汉楚天工业激光设备有限公司 | A kind of laser light-conducting system that solves the long light path problem of impeller welding |
| CN109702328A (en) * | 2017-10-26 | 2019-05-03 | 住友重机械工业株式会社 | Laser processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1031396B1 (en) | 2004-04-21 |
| JP3642969B2 (en) | 2005-04-27 |
| TW445189B (en) | 2001-07-11 |
| US6403920B1 (en) | 2002-06-11 |
| JP2000233291A (en) | 2000-08-29 |
| CN1262977A (en) | 2000-08-16 |
| EP1031396A1 (en) | 2000-08-30 |
| SG83188A1 (en) | 2001-09-18 |
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